Improper Authorization in XWiki platform

1) Improper Authorization

EUVDB-ID: #VU106018

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-29926

CWE-ID: CWE-285 - Improper Authorization

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to improper authorization. A remote attacker can exploit the WikiManager REST API to create a new wiki, leading to privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

XWiki platform: 1.3 rc-1 - 16.9.0

CPE2.3

• cpe:2.3:a:xwiki:xwiki-platform:16.9.0:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:3.0-milestone-1:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:3.2-m3:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:5.4.7:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:6.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:6.1:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:6.2.7:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:6.3:rc-1:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:6.4.8:*:*:*:*:*:*:*
• cpe:2.3:a:xwiki:xwiki-platform:7.0.1:*:*:*:*:*:*:*

External links

https://github.com/xwiki/xwiki-platform/commit/82aa670106c7f5e6238ca6ed59a52d1800e05b99
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gfp2-6qhm-7x43
https://jira.xwiki.org/browse/XWIKI-22490

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.